Means for drawing wire and rod



- y M. HOWARTH. MEANS FOR DRAWING WIRE AND ROD, APPLIDCATION FILED 0CT.23. 1919.

1,355,745; I Patented Oct. 12,1920.

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APPLICATION FILED OCT. 23.- I919- Patented Oct. 12, 1920.

2 SHEETS-SHEET 2.

Inuenfor' Mark Hon crib PATENT OFFICE.

7 MARK HOWARTH, F PADG-ATE, WARRINGTON, ENGLAND.

V MEANS FOR DRAWING WIRE AND non.

Specification of Letters Patent.

Patented Oct. 12, 1920,

Application filed October 23, 1919. Serial No. 332,777.

fication.

This invention has reference to means for drawing wire and rod, and has primarily for its object and effect to provide improvements by which draw-plates or wortles or dies of the kind at present employed for drawing wire and rod, and the labor, expense, and drawbacks generally associated with their employment, are obviated and according to this invention these objects and ends are accomplished by the means hereinafter described.

In the means of drawing wire or rod according to this invention, a plurality of sets of cylindrical or other shaped rods, carried in a carrier or case, are employed in series, and in the direction of length of the carrier or case, an aperture exists between all the sets of rods, through which the wire to be drawn is passed, and the rods are adapted to be longitudinally shifted or adjusted, so that new surfaces can be broughtintoac tive position as such surfaces of the other parts become worn, so that a re-adjustment of the active drawing surfaces can be readily effected as wear takes place; and any number of sets of these wires or rods (which will be arranged in pairs on opposite sides" of the axes of the appliance), and any number of sets in series longitudinally of the appliance, may be used. The wire or rod may be cylindrical or of other section.

The appliance described in some cases, as where say a square or polygonal section of wire or rod is to be made, will be station ary; and in other cases the whole appliance will be revolved around the axis of the longitudinally moving wire or rod as the wire is being drawn; and in such a case, by the rotation of the appliance, a helical form of wire may be produced; and any number of.

sides may be imparted to the wire or rod as may be required by the use of multiple sets of drawing rollers or rods or wires used, and their axial dispositions in relation to each other.

The material of which the drawing rollers or rods or wires are made is preferably hard steel or hard ferrous alloy.

In the drawings illustrating this invention, Figure 1 is a perspective view, showing the invention; and Figs. 2 and 3 are end and side elevations respectively of a modification of the means shown in Fig. 1.

Fig. 4c shows a mode of adjusting the operative parts of the drawing devices or means which act upon the wire or rod, over which it is passed; and Fig. 5 is a part side elevation.

Fig. 6 is a perspective view showing the case where the drawing means are in the form of rollers.

Referring to the drawings, 1 are the rods or rollers which act on the surfaces of the wire or rod 0 to be drawn; and 2 is the holder or container of the rods or rollers; and they are so arranged as to practically form an aperture between them through which the wire or rod to be drawn is passed; and when being drawn the several rods or rollers surround, and are in contact with the several parts of the surface of the wire or rod.

In the appliance shown in Fig. 1, the operative devices 1 are in the form of cylindrical rods, and there are four of such rods,

one pair being in front of the other in the A I carrier 2; and the rods are long, and are ad-' justable in their carrier, so that they can be adjusted and fresh surfaces orparts can be brought to act upon the wire in drawing it. In this case, the aperture formed by and between the rods, is rectangular owing to the disposition of the different sets of rods being at right angles to each other; butin other cases as shown in Figs. 2 and 3, the axes of the rods or wires 1, are at 60 from one another, so that a wire or rod of hexagonal section is produced; the aperture formed between the active surfaces of the rods or wire in the direction of length of the carrier, being hexagonal. And in like manner, by having the axes of the rollers or rods or pins, as the case may be, variously disposed ,in relation to each other, wire or rod of different polygonal sections can be the arrangement shown in Figs. 4 and 5 effects this, In this the several bars or rods 1, which pass through the carirer 2 or container, are mounted in heads 4:, which are carried on the arms of a bell crank lever 5, which is vibrated about a pivot or axis 6 preferably mechanically, at a suitable slow rate, so that the die or drawing rods or wires 1 in this case will be slowly reciprocated through the carrier or container 2, and cool parts will always be being brought to the active position.

As will be understood, any number of sides may be imparted to the wire as may be required, by the use of multiple drawing rods, pins, or rollers used, and their axial dispositions in relation to each other.

In the case shown in Fig. 6, the parts which act upon the wire or rod being drawn, consist of rollers 1 mounted and adapted to revolve on spindles 3, carried in the holder 2; and the wire or rod in being drawn will cause the rollers to revolve as it passes over or in contact with them; whereas where rods or pins as in Figs. 1, 2, 3, 4 and 5 are employed, such rods or pins need not revolve, but they may do so.

The rods or pins 1 may be cylindrical, or

of other section, and being of such length that by longitudinally shifting or adjusting them, new acting surfaces are brought into the operative position, the surfaces do not become highly heated, and in consequence the rods do not wear rapidly; and

the parts which are not active for the time being are air cooled.

A die or drawing means according to this invention does. away with the great friction which is entailed in drawing by the usual draw-plates or dies, and friction is very much reduced; and also does away with repairing and pre aration of the present draw plates used, suc as setting, battering, and punch preparation now required for every fresh piece of wire; and thus a die or drawing means is provided the life or duration of which is relatively great, and the operative parts when worn, can be very readily and cheaply re laced; while also the wire or rod does not arden as in ordinary drawing through, draw plates or wortles, and thus avoid annealing to agreat extent, and the cost and disadvantages of same.

What is claimed is j 1. Means for drawing wire wherein the operative. devices which act upon the wire consist of rods which are adjustable so that the portions of same which act upon the wire being drawn can be changed substantially as set forth.

2. Means for drawing wire wherein the operative devices which act upon the wire engaging the wire to be drawn, and means for moving the movable members.

6. Means for drawing wire comprising a carrier, rods movable in the carrier for engaging the wire to be drawn and means for movin the rods.

7. Means for drawing wire, comprising a carrierhaving a longitudinal bore, a plurality of rods mounted in pairs in the carrier, the rods of each pair being disposed at opposite sides of the bore, and each pair of rods extending transversely through the carrier and disposed at an angle to the adjacent pair, said rods being movable and forming a bore through which the wire to be drawn is passed.

8. Means for drawing wire, comprising a carrier having a longitudinal bore, a plurality of rods slidably mounted transversely in said carrier for engaging wire to be drawn, said rods being in pairs oppositely mounted in the carrier in parallel relation, each pair being at an angle to its adjacent pair, and means for moving the rods in the carrier to present a new engaging surface to the wire being drawn.

9. Means for drawing wire, comprising a carrier having a longitudinal bore, a pmrality of rods slidably mounted transversely (r in said carrier for engaging wire to be drawn, said rods being in pairs mounted in opposite sides of the carrler 1n parallel relation, each pair being at an angle to. its.

adjacent pair, heads connecting the ends of each pair, and levers connected with "the heads, whereby movement imparted to the levers will be transmitted to move the rods in the carrier forpresenting a new engaging surface to the'wire being drawn.

In testimony whereof I have sig'nedmy name to this specification in the presence of two subscribing witnesses. x

MARK HOWARTH.

Witnesses:

SOMERVILLE GoonALL, HARoLnE. CLARKE. 

